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  • Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?Option: 1 <

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?

Option: 1

\mathrm{Li}


Option: 2

\mathrm{Na}


Option: 3

\mathrm{K}


Option: 4

\mathrm{Rb}


Answers (1)

best_answer

Ionic size of \mathrm{Li}^{+} is lowest and the surface charge density is highest among all other alkali metals. Therefore, \mathrm{Li}^{+} is most heavily hydrated among all alkali metal ions.

Effective size of \mathrm{Li}^{+}ion aqueous solution is therefore, largest.

Due to its large size, its ionic mobility is lowest under electric field.

Posted by

shivangi.shekhar

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